Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 250 Longwood Avenue, Boston, MA, 02115, USA.
Division of Molecular Medicine, Boston Children's Hospital, Department of Pediatrics, Harvard Medical School, 3 Blackfan Street, Boston, MA, 02115, USA.
Angew Chem Int Ed Engl. 2019 Jul 15;58(29):9866-9870. doi: 10.1002/anie.201903093. Epub 2019 May 7.
Presentation of membrane proteins to host immune systems has been a challenging problem owing to complexity arising from the poor in vivo stability of the membrane-mimetic media often used for solubilizing the membrane proteins. The use of functionalized, biocompatible nanoparticles as substrates is shown to guide the formation of proteoliposomes, which can present many copies of membrane proteins in a unidirectional manner. The approach was demonstrated to present the membrane-proximal region of the HIV-1 envelope glycoprotein. These nanoparticle-supported liposomes are broadly applicable as membrane antigen vehicles for inducing host immune responses.
由于用于溶解膜蛋白的膜模拟介质的体内稳定性差而导致的复杂性,向宿主免疫系统呈现膜蛋白一直是一个具有挑战性的问题。使用功能化的、生物相容性的纳米粒子作为基底被证明可以指导形成脂质体,这些脂质体可以以单向的方式呈现许多膜蛋白的拷贝。该方法被证明可以呈现 HIV-1 包膜糖蛋白的膜近端区域。这些纳米粒子支撑的脂质体作为膜抗原载体广泛适用于诱导宿主免疫反应。